<template>
  <div>
    <!-- 引入头部公共组件 -->
    <nav-header ref="navHeader"></nav-header>
    <!-- 引入面包屑公共组件 -->
    <nav-bread>
      <!-- 插槽使用 -->
      <span>My Cart</span>
    </nav-bread>
    <svg style="position: absolute; width: 0; height: 0; overflow: hidden;" version="1.1"
         xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
      <defs>
        <symbol id="icon-add" viewBox="0 0 32 32">
          <title>add2</title>
          <path class="path1"
                d="M15 17h-13.664c-0.554 0-1.002-0.446-1.002-1 0-0.552 0.452-1 1.002-1h13.664v-13.664c0-0.554 0.446-1.002 1-1.002 0.552 0 1 0.452 1 1.002v13.664h13.664c0.554 0 1.002 0.446 1.002 1 0 0.552-0.452 1-1.002 1h-13.664v13.664c0 0.554-0.446 1.002-1 1.002-0.552 0-1-0.452-1-1.002v-13.664z"></path>
        </symbol>
        <symbol id="icon-ok" viewBox="0 0 32 32">
          <title>ok</title>
          <path class="path1"
                d="M31.020 0.438c-0.512-0.363-1.135-0.507-1.757-0.406s-1.166 0.435-1.529 0.937l-17.965 24.679-5.753-5.67c-0.445-0.438-1.035-0.679-1.664-0.679s-1.219 0.241-1.664 0.679c-0.917 0.904-0.917 2.375 0 3.279l7.712 7.6c0.438 0.432 1.045 0.681 1.665 0.681l0.195-0.008c0.688-0.057 1.314-0.406 1.717-0.959l19.582-26.9c0.754-1.038 0.512-2.488-0.538-3.233z"></path>
        </symbol>
        <symbol id="icon-edit" viewBox="0 0 32 32">
          <title>edit</title>
          <path class="path1"
                d="M28.287 8.51l-4.805-4.806 0.831-0.831c0.472-0.472 1.086-0.777 1.564-0.777 0.248 0 0.452 0.082 0.622 0.253l3.143 3.144c0.539 0.54 0.133 1.529-0.524 2.186l-0.831 0.831zM26.805 9.992l-1.138 1.138-4.805-4.806 1.138-1.138 4.805 4.806zM24.186 12.612l-14.758 14.762-4.805-4.806 14.758-14.762 4.805 4.806zM7.379 28.288l-4.892 1.224 1.223-4.894 3.669 3.67zM31.123 4.011l-3.143-3.144c-0.567-0.567-1.294-0.867-2.103-0.867-1.036 0-2.174 0.52-3.045 1.391l-20.429 20.436c-0.135 0.134-0.23 0.302-0.276 0.487l-2.095 8.385c-0.089 0.355 0.017 0.736 0.276 0.995 0.198 0.198 0.461 0.307 0.741 0.307 0.085 0 0.171-0.010 0.254-0.031l8.381-2.096c0.185-0.047 0.354-0.142 0.487-0.276l20.43-20.436c1.409-1.41 2.042-3.632 0.524-5.15v0z"></path>
        </symbol>
        <symbol id="icon-del" viewBox="0 0 32 32">
          <title>delete</title>
          <path class="path1"
                d="M11.355 4.129v-2.065h9.29v2.065h-9.29zM6.194 29.935v-23.742h19.613v23.742h-19.613zM30.968 4.129h-8.258v-3.097c0-0.569-0.463-1.032-1.032-1.032h-11.355c-0.569 0-1.032 0.463-1.032 1.032v3.097h-8.258c-0.569 0-1.032 0.463-1.032 1.032s0.463 1.032 1.032 1.032h3.097v24.774c0 0.569 0.463 1.032 1.032 1.032h21.677c0.569 0 1.032-0.463 1.032-1.032v-24.774h3.097c0.569 0 1.032-0.463 1.032-1.032s-0.463-1.032-1.032-1.032v0z"></path>
          <path class="path2"
                d="M10.323 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
          <path class="path3"
                d="M16 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
          <path class="path4"
                d="M21.677 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
        </symbol>
        <symbol id="icon-clock" viewBox="0 0 32 32">
          <title>clock</title>
          <path class="path1" fill="#605f5f"
                d="M16 29c-7.168 0-13-5.831-13-13s5.832-13 13-13c7.168 0 13 5.832 13 13s-5.832 13-13 13zM16 0c-8.822 0-16 7.178-16 16s7.178 16 16 16c8.822 0 16-7.178 16-16s-7.178-16-16-16z"></path>
          <path class="path2" fill="#605f5f"
                d="M23.958 21.837l-6.958-6.489v-6.282c0-0.827-0.673-1.5-1.5-1.5s-1.5 0.673-1.5 1.5v6.934c0 0.414 0.174 0.814 0.477 1.098l7.435 6.934c0.279 0.259 0.642 0.402 1.023 0.402 0.415 0 0.814-0.174 1.096-0.477 0.564-0.605 0.532-1.555-0.073-2.12z"></path>
        </symbol>
      </defs>
    </svg>
    <!-- 页面内容区域 -->
    <div class="container">
      <div class="cart">
        <div class="page-title-normal">
          <h2 class="page-title-h2"><span>My Cart</span></h2>
        </div>
        <el-table
          :data="cartList"
          style="width: 100%"
          :header-cell-style="{background:'#605F5F', color:'#FFFFFF', 'letter-spacing':'.25em'}"
          @selection-change="handleSelectionChange">
          <template  slot="empty" >
            <div v-if="!isLogin">
              暂无数据
              <el-button type="text" size="small" style="font-size:14px;" @click="goLogin">请先登录</el-button>
            </div>
            <div v-else>
              购物车空空如也~
              <el-button type="text" size="small" style="font-size:14px;" @click="goGoodsList">前往加购</el-button>
            </div>
          </template>
          <el-table-column type="selection" width="60" align="center"></el-table-column>
          <el-table-column prop="items" label="ITEMS" width="456" header-align="center">
            <template slot-scope="scope">
              <div class="cart-item-list">
                <div class="cart-item-pic">
                  <img :src="'/static/'+scope.row.productImage" :alt="scope.row.productName">
                </div>
                <div class="cart-item-title">
                  <div class="item-name">{{scope.row.productName}}</div>
                </div>
              </div>
            </template>
          </el-table-column>
          <el-table-column prop="price" label="PRICE" width="149" align="center">
            <template slot-scope="scope">
              <div class="cart-tab-2">
                <div class="item-price">{{scope.row.salePrice | currency('￥')}}</div>
              </div>
            </template>
          </el-table-column>
          <el-table-column prop="quantify" label="QUANTIFY" width="235" align="center">
            <template slot-scope="scope">
              <div class="cart-tab-3">
                <div class="item-quantity">
                  <div class="select-self select-self-open">
                    <div class="select-self-area">
                      <a class="input-sub" @click="cutNum(scope.row)">-</a>
                      <span class="select-ipt">{{scope.row.productNum}}</span>
                      <a class="input-add" @click="addNum(scope.row)">+</a>
                    </div>
                  </div>
                </div>
              </div>
            </template>
          </el-table-column>
          <el-table-column prop="subtotal" label="SUBTOTAL" width="233" align="center">
            <template slot-scope="scope">
              <div class="cart-tab-4">
                <div class="item-price-total">{{scope.row.salePrice * scope.row.productNum | currency('￥')}}</div>
              </div>
            </template>
          </el-table-column>
          <el-table-column prop="edit" label="EDIT" width="127" align="center">
            <template slot-scope="scope">
              <div class="cart-tab-5" @click="deleteGoods(scope.row)">
                <div class="cart-item-opration">
                  <a href="javascript:;" class="item-edit-btn">
                    <svg class="icon icon-del">
                      <use xlink:href="#icon-del"></use>
                    </svg>
                  </a>
                </div>
              </div>
            </template>
          </el-table-column>
        </el-table>
        <div class="cart-foot-wrap">
          <div class="cart-foot-inner">
            <div class="cart-foot-r">
              <div class="item-total">
                Total: <span class="total-price">{{totalPrice | currency('￥')}}</span>
              </div>
              <div class="btn-wrap">
                <a class="btn btn--red" :class="{'btn--dis': selectedGoods.length == 0}" @click="checkOrder">Checkout</a>
              </div>
            </div>
          </div>
        </div>
      </div>
      <el-dialog
        title="删除商品"
        :visible.sync="dialogVisible"
        width="30%"
        center
        :show-close="false">
        <span>
          <i class="el-icon-warning-outline"></i>
          &nbsp;{{delCartMsg}}
        </span>
        <span slot="footer" class="dialog-footer">
          <el-button @click="cancelDel">取消</el-button>
          <el-button type="danger" @click="sureDel">移除</el-button>
        </span>
      </el-dialog>
    </div>
    <!-- 引入尾部公共组件 -->
    <nav-footer></nav-footer>
  </div>
</template>
<style>
  .input-sub,.input-add{
    min-width: 40px;
    height: 100%;
    border: 0;
    color: #605F5F;
    text-align: center;
    font-size: 16px;
    overflow: hidden;
    display: inline-block;
    background: #f0f0f0;
  }
  .item-quantity .select-self-area{
    background:none;
    border: 1px solid #f0f0f0;
  }
  .item-quantity .select-self-area .select-ipt{
    display: inline-block;
    padding:0 3px;
    width: 30px;
    min-width: 30px;
    text-align: center;
  }
</style>
<script>
  import './../assets/css/checkout.css'
  import NavHeader from '@/components/NavHeader.vue'
  import NavFooter from '@/components/NavFooter.vue'
  import NavBread from '@/components/NavBread.vue'
  import axios from 'axios'
  export default{
    inject:['pageFresh'],
    data(){
        return{
          cartList:[], // 购物车列表数据
          dialogVisible: false, // 弹框是否显示
          delGoods: {}, // 待删除的goods
          delCartMsg: '确定将该商品移除购物车？', // 删除商品接口，返回信息
          selectedGoods: [], // 表格勾选记录
          isLogin: false, // 登陆状态
        }
    },
    mounted () {
      this.getCartList()
    },
    computed: {
      totalPrice () { // 计算属性：计算勾选商品总价格
        let totalPriceTemp = 0
        this.selectedGoods.map(item => {
          totalPriceTemp += item.salePrice * item.productNum
        })
        return totalPriceTemp
      }
    },
    methods: {
      getCartList () { // 获取购物车列表数据
        axios.get('/users/getCartList').then(res => {
          if (res.data.status == '0') {
            this.cartList = res.data.result
            this.isLogin = true
          } else {
            if (res.data.result == '当前未登录') {
              this.isLogin = false
            }
          }
        })
      },
      deleteGoods (delGoods) { // 移除商品
        this.delGoods = delGoods
        this.dialogVisible = true
      },
      cancelDel () { // 取消移除
        this.delGoods = {}
        this.dialogVisible = false
        this.$message("取消移除")
      },
      sureDel () { // 确认将商品移除购物车
        axios.post('/users/cart/del',{productId: this.delGoods.productId}).then(res => {
          if (res.data.status = '0') {
            this.$message({
              message: "商品移除购物车成功",
              type: 'success'
            })
            this.$store.commit("updateCartCount", -(this.delGoods.productNum))
          } else {
            this.$message.error('商品移除购物车失败')
          }
          this.$refs['navHeader'].getCartCount()
          this.pageFresh()
        })
        this.dialogVisible = false
      },
      cutNum (row) { // 商品数量-
        if (row.productNum >= 2) {
          row.productNum --
          this.$store.commit("updateCartCount", -1)
        } else {
          this.deleteGoods(row)
        }
      },
      addNum (row) { // 商品数量+
        row.productNum ++
        this.$store.commit("updateCartCount", 1)
      },
      handleSelectionChange (val) { // 已勾选的数据
        this.selectedGoods = val
      },
      checkOrder () { // 前往下单
        if (this.selectedGoods.length > 0) {
          // 更新购物车数据
          let selectId = this.selectedGoods.map(item => {
            return item.productId
          })
          this.cartList.map(item => {
            item.checked = selectId.includes(item.productId)
          })
          axios.post('/users/cart/goodsFresh',{
            updateCartList: this.cartList
          }).then(res => {
            if (res.data.status === '0') {
              this.$router.push({name: 'Address'})
            } else {
              this.$alert('购物车数据更新错误', '提示', {
                confirmButtonText: '确定',
                callback: (action) => {
                  return
                }
              })
            }
          })
        } else {
          this.$alert('至少需要选择一件商品', '提示', {
            confirmButtonText: '确定',
            callback: (action) => {
              return
            }
          })
        }
      },
      goLogin () { // 触发登陆
        this.$refs['navHeader'].loginDialogShow = true
      },
      goGoodsList () { // 跳转商品列表页面
        this.$router.push({name:'GoodsList'})
      }
    },
    components: {
      NavHeader,
      NavFooter,
      NavBread,
    }
  }
</script>
